uVision V5.14.0.0 on Win 7. New to Keil. I am trying to modify an example project and want to attach files to particular component classes, but it is not obvious on how to do this. I can right click on Application folder and "Add Existing files to Group 'Application'", in which case it is included with main.c under the Application folder, but I don't see the same feature when trying to add existing to Component Class. I want to maintain the structure of the existing project.